However, the exact location can vary slightly depending on the specific engine configuration. It's best to consult a repair manual specific to your 1999 Ford Ranger 3.0L V6. A Chilton's or Haynes repair manual, or even a digital version, will have diagrams showing the exact location and will likely provide helpful information regarding sensor removal and replacement. A visual inspection with the engine bay cleaned (to improve visibility) is also helpful once you have a general idea of its location.